%%todo Enrique

The process of obtaining a spreadsheet from a conceptual model is a problem that
can be implemented with the existing theory and tools in a very satisfactory
way. We can not come up with a definite way to perform the translation because
it depends on the information that the client is interested in. 

For representing the conceptual schema we recommend ORM instead of UML because it
is more expressive with respect to that domain. The ORM foundation also performed
an experiment to test the hypothesis that ``ORM is at least 25\% more effective
 than ER and UML'' they claim it is confirmed but there is no solid evidence
 about it.

The integrity constrains of a conceptual model can be translated to a
spreadsheet. The simplicity to check them depends on the choice of the
spreadsheet software. Google spreadsheet have scripts that are a very open
feature to check any kind of constraints present in a model.

As a result of this investigation we propose that in the implementation of a
system that translates from conceptual model to a spreadsheet the ORM standard
should be used. The RMAP algorithm should handle the translation to a relational
schema and then using google spread sheet we can represent it and check in a
very efficient way all the restrictions of that model.
